I live in Susissevale. The water is fine at the times you'll most likely be using it. Early morning late afternoon. If the weather is anything like last year you'll be the only out there anyway. It is tight near the beach in Susissevale and there are some rules for using the boat ramp there and the beach Parking is tight and no trailers allowed. So you'll need to drop the boat and bring the trailer home.
I have to do that with my Jetski trailer even. Not a big deal really. Just watch the new speed limit if you have a fast boat as well.